How to obtain getMessageCounters for a Topic

[leonv]

From my application I?m publishing messages to the testTopic topic.
This application is not running under Jboss.

Does anyone know how I can obtain the Message counters ... getMessageCounters() for a given topic?
See:

http://labs.jboss.com/file-access/default/members/jbossmessaging/freezone/docs/javadoc/api-1.4.0.CR1/org/jboss/jms/server/destination/TopicService.html#getMessageCounters()


As base I'm using the out of the box jboss-4.2.1.GA installation without ANY configuration change.

In the file:
\jboss-4.2.1.GA\server\default\deploy\management\console-mgr.sar\web-console.war\TopicSubscriptions.jsp
Is almost what I needed.
Almost since this page return exceptions.
(If it works I can reformat the output to XML)

Try:
http://localhost:8080/web-console/TopicNavigation.jsp?ObjectName=testTopic

And click subscriptions.



per.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspTagException: javax.management.MalformedObjectNameException: Key properties cannot be empty
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:535)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:411)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

root cause

javax.servlet.ServletException: javax.servlet.jsp.JspTagException: javax.management.MalformedObjectNameException: Key properties cannot be empty
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:855)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:784)
org.apache.jsp.TopicSubscriptions_jsp._jspService(TopicSubscriptions_jsp.java:208)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:387)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

root cause

javax.servlet.jsp.JspTagException: javax.management.MalformedObjectNameException: Key properties cannot be empty
org.jboss.console.plugins.helpers.servlet.MBeanTag.doStartTag(MBeanTag.java:95)
org.apache.jsp.TopicSubscriptions_jsp._jspService(TopicSubscriptions_jsp.java:77)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:387)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)


If JMX is the only solution, does somebody has a piece of example code?

Thanks for any help

[apwalker]

BTW the Forum is for Design questions for the JBoss Messaging implementation. Please post these types of questions on the user forums.

That said

You can invoke any JMX MBean remotely by simply looking up the RMIAdaptor in JNDI.

Here's some sample code for doing this

 String connectorName="jmx/rmi/RMIAdaptor";

 RMIAdaptor server = (RMIAdaptor) new InitialContext().lookup(connectorName);

 ObjectName monitorName = new ObjectName("Monitor:name=JBossMonitor");



 Object[] params = {};

 String[] signature = {};

 String history = (String) server.invoke(monitorName, "history", params, signature);

 System.out.println("Invoked JBossMonitor.history:");

 System.out.println(history);

Check the JBoss Microkernel wiki http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossMicrokernel for more info as well as the JBoss AS docs